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B2 Upper Intermediate English 5:21 645 words Educational

You might be surprised by what you'd find in your pores - M. Alejandra Perotti

TED-Ed · 374,052 views · Added 5 months ago

AI Summary

This video explores the tiny Demodex mites that live inside human skin pores, covering their biology, evolutionary history, and relationship with their human hosts. Learners will encounter advanced scientific vocabulary related to dermatology, parasitology, and evolution, including terms like hair follicles, sebaceous glands, melatonin, and genetic diversity. The video offers fascinating language practice for discussing symbiotic relationships, human biology, and scientific discovery, while addressing common questions about skin health.

Learning Stats

B2

CEFR Level

645

Total Words

344

Unique Words

6/10

Difficulty

Vocabulary Diversity 53%

Subtitles (32 segments)

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00:06

In 1841, German anatomist Jacob Henle was examining earwax under a microscope when, much to his surprise, tiny, worm-like creatures came into view.

00:19

Soon after, scientists realized that these animals were, in fact, tiny arachnids.

00:26

And now we know they belong to a group of mites, which scientists named Demodex, that contains more than 100 different species that live in and around mammals’ hair follicles.

00:39

Two of these species— Demodex folliculorum and brevis— specifically inhabit human follicles.

00:47

And not just some people’s. Nearly everyone is thought to host mites from at least one of these two Demodex species.

00:56

One person’s face might harbor hundreds or even thousands of individual mites.

01:02

So, yes: on any given day, microscopic arachnids are probably eating, mating, and laying eggs inside your pores.

Full subtitles available in the video player

Key Vocabulary (15)

mites B1 noun

Mites are tiny, eight-legged arachnids, similar to spiders, that often live in dust, on plants, or as parasites on animals and humans. They are so small that they are usually invisible to the naked eye and can cause itching or damage to their hosts.

pores B1 noun

Pores are very small openings on the surface of your skin or other materials. In biology, they allow sweat and oil to pass through the skin to cool the body and keep it healthy.

scientists B1 noun (plural)

People who have expert knowledge in one or more of the natural or physical sciences. They conduct research and experiments to discover new things.

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